From: "Edgar E. Iglesias" <[EMAIL PROTECTED]>
Date: Sun, 6 Aug 2006 09:14:18 +0200

> Later I ended up throwing this away as it was causing some TCP
> connections to deadlock. If you let skb's sit in the tx-ring
> indefintely, the sk->sk_wmem_queued accounting will be inacurate and
> this was causing the TCP retransmit logic to deadlock.

That's right, it's important to release TX SKBs in a timely.  Doing it
purely from ->hard_start_xmit() causes big problems, as you saw.

Increasingly I find that orphan'ing an SKB once it hits the real
device for transmit is something to seriously consider.

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